32 holes, Center Lock disc brake mount, for 12 mm thru-axle, suitable for e-bikes, black aluminum hub body, ball bearings, robust steel freehub body, 27-tooth ratchet freehub system, 3 pawl arrangement Axle thru-axle 12 mm Installation Rear wheel Number of pawls 3 pcs. Article type Design Cassette Brake mount hub Disc - Center Lock Braking surface yes, no E-bike type ready Installation width 148 mm (Boost) Flange diameter 68 mm Freehub body HG-M, MTB Freehub system 27 teeth For wheel Standard Gears 8-speed, 9-speed, 10-speed, 11-speed Main color black Chain line 44.5 mm Bearing type Ball bearing Material freehub body Steel Material hub body Aluminum Hub model Core CL Number of spoke holes 32 holes Spoke hole diameter for 2.00 and 2.34 mm Spoke type J-Bend Text Wheel configuration suitable for e-bikes